2011年1月19日 星期三

the system efficiency before they buy

Museums should also do their research to ensure they understand the system efficiency before they buy. “Most manufacturers tend to avoid quoting the system efficiency – the actual amount of light produced - and instead quote the output in laboratory conditions,” Cannon-Brookes explains.The 13W bulb will be made available for purchase in January for less than $30, and should led tube to use 75% less energy than the 60W incandescent bulb it is designed to replace.

Investing in upgradable systems is also important. Jean-Francois Hocquard, chief executive of light designer Luxam, is concerned that the LEDs being sold today might not exist in, say, 10 years' time. Despite their long shelf-life,during the fall months when our trees display the fullness of their breath Led lamp taking beauty through splashes of beautifully colored leaf arrangements, bathed within a brisk, sun filled autumn afternoon air. the systems will need replacing eventually and Hocquard’s concern is that museums may find they have to pay for another complete upgrade. He adds: “Museums might also have to replace display cases, depending on how the lighting has been installed. The important thing to keep in mind when investing in lighting is that it is upgradable.”

So,The KMC top brass were divided Led strip light when an MNC approached them to adopt the latest technology for street lighting. While mayor Sovan Chatterjee welcomed the change, should museums jump on the LED bandwagon now or wait until the technology improves further or the cost comes down?

“I would advise museums to proceed with caution,” says Cannon-Brookes.It was the erstwhile Left Front board that first decided to modernize streetlights Air max classic on some major thoroughfares. The former member, mayor-in-council (lighting) Sushil Sharma took the initiative to install LEDs on select roads. “LED technology has increased very quickly but has still not reached the plateau that we are familiar with for tungsten halogen lighting.”

But Nick Wraith, managing director of LED lighting manufacturer Luminal, says that, while technology will continue to improve,Many areas of the world are simply off the grid. To bring them electricity, solar is far cheaper Led light than connecting them to the grid or building power plants. And in some places, villagers are beginning to put up solar, home by home, instead of waiting for the government to build larger solar or wind power farms. museums that wait for this will miss out on the potential energy and cost savings over that period.

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